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AS25248
AS25248 BlueTone-AS RADIOKOMUNIKACE a.s.
BlueTone-AS RADIOKOMUNIKACE a.s. · registered in Czechia
IPv4 addresses 106,752 5 prefixes · 0.003% of announced IPv4
Rank in Czechia #14 largest network in CZ by IPv4 space, of 570 · 1.29% of CZ
Rank worldwide #1,824 of 79,396 networks with IPv4
IPv6 1 x /32 (65,537 x /48) 2 prefixes
Country Czechia 599 ASNs registered there
IPv4 prefixes
All 5 prefixes, in address order.
82.99.128.0/18 84.244.64.0/18 85.207.0.0/16 193.32.56.0/24 212.158.128.0/19
IPv6 prefixes
All 2 prefixes.
2001:67c:2100::/48 2a02:a40::/32
Similar-sized networks in Czechia
ASN Name IPv4 addresses
AS25512 #11 CDT-AS CD-Telematika a.s.117,760
AS44546 #12 ALFATELECOM-AS ALFA TELECOM s.r.o.110,848
AS197451 #15 VUTBR-AS Brno University of Technology66,816
AS31246 #16 NETBOX-AS O2 Czech Republic, a.s.66,560
AS44489 #17 Starnet STARNET, s.r.o.64,768
IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources